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3.    The inpidual coffee preparation unit according to claim 2, wherein the succession of assembled elements comprises, in succession, of a crosspiece (70), an injection piece (60), and the spray element (51), the crosspiece (70) is attached to the lower plate (12) of the front portion (11) by a screw connection (71) and the injection piece (60) and the spray element (51) are both connected to the crosspiece (70) by a screw (61).
4.    The inpidual coffee preparation unit according to claim 3, wherein a lower central portion of the crosspiece
(70)    has a threaded portion (72) which engages with the screw (61) attaching the spray element (51) to the injection element (60), a plurality of connections (67, 68), each connected with one of the first and second flexible hydraulic connectors (47, 48), extend through the crosspiece (70), and a plurality of longitudinal channels (62), which each com-municate with the distribution chamber (63), extend at least partially through the injection element (60) to supply heated water through the injection element (60) to the spray ele¬ment (51).
5.    The inpidual coffee preparation unit according to claim 3, wherein a first central conduit (73) extends through the crosspiece (70) for attaching the crosspiece (70) to the lower plate (12), a second conduit (74) interconnects the first flexible hydraulic connector (47) with the distribution cham-ber (63) for supplying heated water thereto, and a third conduit (75) interconnects the second flexible hydraulic connector (65) with the distribution chamber (63) which is connected to the hydropneumatic storage (64).
6.    The inpidual coffee preparation unit according to claim 1, wherein the succession of assembled elements which form each one of the injection groups (40, 41) are all made from plastic.
7.    The inpidual coffee preparation unit according to claim 1, wherein each inpidual heating unit (46) is an instant heat unit.
8.    The inpidual coffee preparation unit according to claim 2, wherein an electric resistor is affixed to the lower surface (12) of the front portion (11), in a region where the injection group (40, 41) is attached, for maintaining the injection group (40, 41) at a stable coffee brewing tempera-ture.
9.    The inpidual coffee preparation unit according to claim 3, wherein the crosspiece (70) has a screw connection
(71)    , attached to the lower surface (12) of the front portion (11), and a threaded portion (72) engages with the screw (61) to attached the injection element (60) and the spray element (51) to the crosspiece (70).
10.    The inpidual coffee preparation unit according to claim 9, wherein the threaded portion (72) is a centrally located and is an extension of the crosspiece (70).
11.    The inpidual coffee preparation unit according to claim 2, wherein first and second connectors (67, 68) extend through the lower plate (12) and communicate with distri-bution channel (63), and the first connector (67) is connected to the first flexible hydraulic connector (47) and the second connector (68) is connected to the second flexible hydraulic connector (65).
12.    The inpidual coffee preparation unit according to claim 1, wherein an electric resistor is affixed to the lower surface (12) of the front portion (11), in a region where the injection group (40, 41) is attached, for maintaining the injection group (40, 41) at a stable coffee brewing tempera-ture.
13.    The inpidual coffee preparation unit according to claim 1, wherein said inpidual coffee preparation unit has an upper plate provided for heating coffee cups.
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14.    The inpidual coffee preparation unit according to claim 1, wherein all of said inpidual heating units (46) are connected to be supplied with water in parallel with one another via a single injection pump (24). 咖啡机英文文献和中文翻译(7):http://www.751com.cn/fanyi/lunwen_34033.html